docs: change hint line

Author: koreanddinghwan

content/techniques/events.md

@@ -110,16 +110,15 @@ export type OnEventOptions = OnOptions & {
 };
 ```
 
+> info **Hint** Read more about the [`OnOptions` options object from `eventemitter2`](https://github.com/EventEmitter2/EventEmitter2#emitteronevent-listener-options-objectboolean).
+
 ```typescript
 @OnEvent('order.created', { async: true })
 handleOrderCreatedEvent(payload: OrderCreatedEvent) {
   // handle and process "OrderCreatedEvent" event
 }
 ```
 
-> info **Hint** read more about the [`OnOptions` options object from `eventemitter2`](https://github.com/EventEmitter2/EventEmitter2#emitteronevent-listener-options-objectboolean).
-
-
 To use namespaces/wildcards, pass the `wildcard` option into the `EventEmitterModule#forRoot()` method. When namespaces/wildcards are enabled, events can either be strings (`foo.bar`) separated by a delimiter or arrays (`['foo', 'bar']`). The delimiter is also configurable as a configuration property (`delimiter`). With namespaces feature enabled, you can subscribe to events using a wildcard:
 
 ```typescript